1Moeschler JB. Medical genetics diagnostic evaluation of the child with global developmental delay or intellectual disability [ J ]. Curr Opin Neurol,2008,21 ( 2 ) : 117 - 122.
2Basel - Vanagaite L. Clinical approaches to genetic mental retardation [J]. Isr Med Assoc J,2008,10(11):821 -826.
3David S. Disorders usually frist diagnosed in infancy,childhood or ad- olescence [ M ]/ /Moser M, Michael R. Diagnostic and statistical manual of mental disorders[ M ]. 4th ed. Washington,DC : American Psychiatric Association ,2000.41 -49.